This waterproof, WiFi enabled endoscopic camera offers 3 meters of flexible cable and an 8 way LED that fits into tiny spaces to help you diagnose problems at the source. Grab one for just $24 (720p) or $32 (1080p) and save 50% with code GMGBF20 at checkout.

With an IP67 resistance rating, this camera is completely sealed from dust and water, and can stay submerged for over 30 minutes at a time. It sends 2MP images or streams 720p or 1080p HD video to your smartphone for a detailed exploration, and is also compatible with your desktop to provide a bigger view.

This handy smartphone attachment normally runs for $50, but you can grab one today for just $24 (720p) or $32 (1080p) using code GMGBF20 at checkout.